namespace MTBLib {
    [CCode (cname="VNS_MTBLib_Debug", cprefix="VNS_MTBLib_Debug_")]
    namespace Debug {
        [CCode (cname="vns_mtblib_debug_vfn_indent")]
        public void indent(int level,
                           GLib.FileStream stream = stdout,
                           string blank_str = "    ")
        {
            for (int i = 0; i < level; i++)
                stream.printf("%s", blank_str);
        }
    }
}
